Crotonic acid-isobutylamine resin and process of producing the same



Patented Mar. 4, 1941 UNITED STATES PATENT- orrlcs CROTONIC ACID-ISOBUTYIAMINE RESIN AND PROCESS OF PRODUCING THE SAME Aimon G. Hovey, Birmingham, and Theodore S. Hodgins, Royal Oak, Mich assignors to Reichhoid Chemicals, Inc., formerly Beck, Koiler & Company, Inc., Detroit, Mich.

No Drawing. Application December 10, 1938, Serial No. 245,018

6 Claims.

The invention relates broadly to improvements in resinous acid-amine condensation products, and the process'of making the same, the present application being a continuation-in-part of our copending application Serial No. 147,569 flied June 10, 1937, now Patent No. 2,153,801, dated April 11, 1939.

We have discovered that particularly valuable resinous products having distinctive qualities 0 rendering them suitable for various commercial purposes may be produced by reacting crotonic acid with isobutyiamine.

The following specific example is set forth as illustrative of the invention:

Example One moi of crotonic acid was fused with one moi of isobutylamine for '1 minutes at 80-160 C. without excessive foaming, producing a bright 20 light red resin 5 having a curing cycle of 1 seconds on the hot plate at 200 C. This product was limited to alcohols for solubility, being insoluble in water, acetone, toiuol and mineral spirits. It lends itself well to use as a sizing and as wood sealers since it is only soluble in alcohol. 4

We claim:

1. A condensation product formed by fusing together crotonic acid and isobutylamine until a resinous reaction product is obtained, said acid and amine constituting the principal reacting ingredients.

2. A resinous reaction product formed by re- 5 acting one moi of isobutylamine and one moi of crotonic acid, said acid and said amine consti-. tuting the principal reacting ingredients, the product being soluble in alcohols, but insoluble in water, acetone, toluoi and mineral spirits.

3. A process which comprises fusing together crotonic acid and isobutylamlne until a resinous reaction product is obtained, said acid and said amine constituting the principal reacting ingredients.

AIMON G. HOVEY. THEODORE 8. HODGINS. 

